package io;

public class Lee {
    public static void main(String[] args) {
        Aoo o1 = new Aoo();
        o1.a = 5 ;
        Aoo o2 = o1;

        o2.a= 8;
        System.out.println(o1);

    }
}

class Aoo{
    int a;

    @Override
    public String toString() {
        return "Aoo{" +
                "a=" + a +
                '}';
    }
}
